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<t>Thank you for you post Doug. Can you please let us know what rotation sequence this applies to? The calculations I would have used to go from yaw, pitch, roll to the direction cosine matrix (DCM) would have been - <br/> <br/> A = a*pi/180; % a = azmiuth in degrees (yaw?)<br/> E = e*pi/180; % e = ...

I would also like to get some more information on the rotation sequence. Is there any documentation available?

I have been trying to match raw marker data up with the rotated body data, but can't seem to get the sequence correct (or perhaps my calculations are not correct!).

<t>Thanks guys. This is now working well in Matlab, and I have been able to make good live plots of position and orientation of the trackables and also the 3D marker positions. The only problem I am having is using the TT_IsTrackableTracked function which seems to return a library pointer... i think...

<r>I have put the Labview files up at the following links -<br/> <br/> First the VI library in case you haven't been able to build it using the instructions in the earlier post. <br/> <br/> <URL url="http://www.easy-share.com/1908042120/NPTrackingTools.zip"><LINK_TEXT text="http://www.easy-share.com...

<t>Thanks Doug. I will wait for Beta 4 to be released over the coming days.<br/> <br/> Ory - It is relatively simple to build a VI library in Labview from the DLL. To do this, just go to Tools --> Import --> Shared Library (.dll) --> Create VI's for shared library --> Enter the location of DLL and H...

<t>Hi, <br/> <br/> I have been trying to use the Tracking Tools API through Matlab.<br/> <br/> When I load the library (using the 'loadlibrary' function in Matlab) I am getting the following messages -<br/> <br/> Warning: The function 'TT_CameraMarkerCount' was not found in the library <br/> Warning...

Yes, that does sound like a good way of doing this. I will give it a go.

Cheers

<t>This is certainly an important feature which would help if implemented in future versions. What is the best way to do this calculation?<br/> <br/> Do you have to calculate the distance of each marker (obtained from TT_FrameMarkerX-Z) from the the other markers and determine which markers best mat...

<t>Hi Morgan, <br/> <br/> I would certainly be interested in a .Net Assembly or Active X control wrapper to make it easier to access streaming data via Labview or Matlab (particularly using Tracking Tools).<br/> <br/> I have written Labview VI's in the past using the Optitrack SDK to communicate wit...

Thanks Vincent. This answers my question perfectly!